Victron energy Pallas 12/25 Owner's manual

Brand: Victron energy

Model: Pallas 12/25

Category: Battery chargers

Type: Owner's manual

victron energie

USER MANUAL

GEBRUIKSAANWIJZING

GEBRAUCHSANWEISUNG

Victron Pallas 12/25

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SECTIONS

ENGLISH 1

NEDERLANDS 35

DEUTSCH 69

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ENGLISH

USER MANUAL

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Subject to change without notice PA03001E / 160196

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INTRODUCTION

Victron Energie has established an international reputation as

a leading designer and manufacturer of power systems. Our

R&D department is the driving force behind this reputation. It

is continually seeking new ways of incorporating the latest

technology in our products. Each step forward results in value-

adding technical and economical features.

Our proven philosophy has resulted in a full range of state-of-

the-art equipment for the supply of electrical power. All our

equipment meets the most stringent requirements.

Victron Energie systems provide you with high-quality AC

supplies at places where there are no permanent sources of

mains power.

An automatic stand-alone power system can be created with a

configuration comprising a Victron Energie inverter, battery

charger, mains manager (if required) and, last but not least,

batteries with sufficient capacity.

Our equipment is suitable for countless situations in the field,

on ships or other places where a mobile 230-Volt

power sup-

ply is indispensable.

Victron Energie has the ideal power source for all kinds of

electrical appliances used for household, technical and admi-

nistrative purposes, including instruments susceptible to inter-

ference. All of these applications require a high-quality power

supply in order to function properly.

Victron Pallas battery charger model 12/25

This manual contains directions for installing the Pallas bat-

tery charger model 12/25. It describes the functionality and

operation of the Pallas battery charger, including its protective

devices and other technical features.

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CONTENTS

1. DESCRIPTION 7

1.1 General 7

1.2 Pallas charger 7

1.3 Operation 7

2. PROTECTION 9

2.1 Short circuit protection 9

2.2 Temperature protection 9

2.3 Input protection 9

3. COMPENSATED CHARGING 11

3.1 Connection of temperature sensor 11

3.2 Battery temperatures of up to +10°C 11

3.3 Battery temperatures between

+10° and +50°C 11

3.4 High battery temperature 12

4. INSTALLATION 13

4.1 Mounting 13

4.2 Installation requirements 13

4.3 Connections 13

4.3.1 Earthing 14

4.3.2 Battery output 14

4.3.3 Temperature sensor 14

4.4 Starter Battery 15

4.5 Remote control 15

5. START UP 17

5.1 Operating 17

5.2 “boost-float” cycle 18

5.2.1 “boost” period 18

5.2.2 “equalize” period 18

5.2.3 “Float” period 18

6. CALIBRATION 19

6.1 Adjusting the charge voltage19

6.1.1 Setting the charge voltage. 19

6.1.2 Setting the “equalize” voltage 19

6.1.3 Setting the “float” voltage 20

6.1.4 Adjusting charging voltage for use

with a diode splitter 20

6.1.5 Adjusting charging voltage for use

with traction batteries 21

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6.1.6 The maximum charge current 21

6.2 Maintenance 21

6.3 Factory setting 22

6.4 Jumpers 22

6.5 Potentiometers 22

7. FAULT FINDING 23

7.1Fault finding 23

8. SPECIFICATIONS 29

8.1 Input 29

8.2 Output 29

8.3 General 30

8.4 Environment 30

8.5 Mechanical 30

8.6 Connections 30

9. DRAWINGS 31

Victron Pallas charger dimensions 32

Victron Pallas charger connections 33

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1. DESCRIPTION

1.1 General

All Victron Pallas 12/25 battery chargers are subjected to full

functional testing before leaving the factory. They are prop-

erly packed for secure transportation.

The Pallas charger is housed in a IP20 specification alumi-

num case designed for wall or floor mounting. The mains in-

put, battery output and alarm output (if used) connections are

made through the under side of the housing.

1.2 Pallas charger

The Pallas charger is designed for a 12V lead-acid battery sys-

tem. The maximum charging current is 25A and the recom-

mended battery capacity is 100-200Ah. The standard Pallas

charger is suitable for traction batteries. Please consult your

local Victron Energie agent for more details.

The Pallas charger is a fully automatic battery charger. It is

signed to be permanently connected to the lead-acid batteries.

It is no longer necessary to disconnect the charger during long

term storage, for example during winter storage.

protection against

solid matter larger

than 12 mm (e.g.

a finger

Ampere hours

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1.3 Operation

The Pallas charger will charge the battery as soon as the

power switch is turned on, provided there is a mains supply. If

automatic charge mode is selected (see connection diagram),

the battery will be charged with the built in IUoUo charac-

teristic. The float voltage is factory preset to 13.5 V.

The equalize voltage is factory preset to 14.25 V. The boost

and float voltages are user adjustable (see chapter 6).

Warning: Because of the extremely high voltages

permanently present within the Pallas charger, we

insist that only a qualified electrician makes all the

connections and adjustments within the charger.

Make sure the Pallas charger is turned off when

connecting, and use an insulated electrician’s

screwdriver to make all connections and to adjust

the voltage and current control.

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2. PROTECTION

The Pallas charger is inherently safe due to its robust design

and internal safety features.

2.1 Short circuit protection

The output current is fully short circuit protected. The output

current is internally limited under all conditions (see specifica-

tions). The battery cables are thus protected in the event of a

short circuit.

2.2 Temperature protection

If the internal temperature of the Pallas charger increases, the

output current decreases accordingly. Under extreme condi-

tions (the ventilation holes could be blocked) the internal tem-

perature will become too high, and the machine will shut it-

self down. When the internal temperature is again within lim-

its, the Pallas charger will resume operation.

2.3 Input protection

The input of the Pallas charger is protected by a 10A T fuse.

current supplied

when a short-

circuit on the out-

put occurs.

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3. COMPENSATED CHARGING

The Pallas has a temperature compensation facility which ad-

justs the charger voltage to the battery temperature.

In order to use this facility, a temperature sensor (V.T.S.) must

be fitted to the battery. This is because a higher charging volt-

age can be used with a cold battery than with a warm battery.

The reference charging voltage is 14.25 V at a battery tem-

perature of 20°C (see illustration 1).

3.1 Connection of temperature sensor

In order to connect the temperature sensor, jumper S1 must

placed over pins 1 and 2 (see Drawings section, drawing no.

PA03004E, page 33). The yellow temperature sensor LED

will light up if the temperature sensor is connected. (for infor-

mation on jumpers, see section 6.4, "Jumpers").

3.2 Battery temperatures of up to +10°C

At temperatures of up to +10°C, the charger supplies a maxi-

mum charging voltage of 14.75 V. This output voltage is lim-

ited because at higher voltages problems might occur in the

external equipment (see illustration 1, section “A”).

3.3 Battery temperatures between

+10° and +50°C

In this temperature range, the output voltage is dependent on

battery temperature (as measured by the sensor). As the tem-

perature increases, the output voltage of the charger decreases

by 30 mV/°C (5mV/°C per cell). (See illustration 1, sec-

tion “B”).

Victron

Temperature

Sensor

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3.4 High battery temperature

At battery temperatures of +50°C and above, the charging

voltage drops sharply. At values of 55°C and above, the

charger operates as a rectifier with an output voltage of 12 V

(see illustration 1, sections “C” and “D”).

Drawing PA03004E (page 33) shows where the temperature

sensor must be fitted. It is also necessary to change jumpers

S1 to pins 1 and 2 on the control PCB (see section “Draw-

ings”, drawing number PA03004E, page 33)

-20 -10 0 10 20

temp. ( C)

Volt (V)

CA B D

Illustration 1.

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4. INSTALLATION

4.1 Mounting

Wall or floor mount the Pallas charger in a dry, well venti-

lated area. Excessively high ambient temperatures may ad-

versely affect the output current and the lifetime of the Pallas

charger. Best results are obtained in such conditions if the Pal-

las charger is wall mounted. For secure placement, the Pallas

is supplied with mounting holes both in the rear and in the

bottomside, see drawing PA03005E on page 32.

Make sure the front panel can be reached after installation.

The Pallas charger and the battery’s should be place close to-

gether to keep the battery cables as short as possible, ensuring

optimal loading.

4.2 Installation requirements

The Victron Pallas charger should be installed with the help

of the following equipment:

❐ two battery cables (max. length 6 meters, with clamps)

❐ screwdriver (no. 2) to connect an earth cable

4.3 Connections

The Pallas 12/25 is fitted with a mains cable. The connections

for the battery are on the front of the housing.

Victron battery chargers are designed to charge bat-

teries; the charger always expects the load of a bat-

tery and it is not a power supply. Connect the bat-

tery before switching the charger on and switch the

charger off before the battery is disconnected.

4.3.1 Earthing

The Pallas charger is not a double insulated charger. The PE

terminal must be connected to a true earth under all condi-

tions. On a boat, the earth terminal on the under side of the

housing must be connected to the ground plate or the hull.

The shore connection must be earthed to the PE terminal on

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the mains input connection block. For mobile applications

(car, caravan et cetera) earth terminal must be connected to

the metal chassis.

4.3.2 Battery output

It is important that the connection between the Pallas charger

and the battery is made in such a way that power loss is mini-

mized. The cables must be as short and as thick as possible to

reduce resistance. We recommend using cable shoes as sup-

plied. We recommend the following minimum copper cross

section for these battery cables:

Pallas type Length cross section

12/25

0 - 1.5 meters 6 mm

1.5 - 6 meters 10 mm

Cable lengths in excess of 6 meters are not recommended.

4.3.3 Temperature sensor

The Pallas chargers can be equipped with a temperature sen-

sor (V.T.S.) connected to the battery. The sensor measures the

battery temperature continuously, allowing the charge voltage

to adjust to the temperature of the battery.

To correctly connect the V.T.S. jumper S1 must be placed on

pins 1 and 2, drawing PA03004E on page 33. For further in-

formation on jumpers see paragraph 6.4. If the positive and

negative poles are connected incorrectly the yellow LED will

not light up.

Illustration 2. Position of earth-

ing screw on the Pallas 12/25

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4.4 Starter Battery

Connect the starter battery to terminals 1 and 2 of the “re-

mote” terminal block (1 is the “-” and 2 is the “+” of the bat-

tery). A wire thickness of 1.5 mm

is sufficient for connecting

this battery.

4.5 Remote control

The Pallas charger can be equipped with a remote control

unit, the Pallas Charger Mode unit is shown in illustrations 3.

The front has LEDs displaying, “boost”, “equalize”, “float”

and “failure”.

CHARGER MODE

failure

boost

equalized

float

Illustration 3. Pallas

Charger Mode unit.

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Victron energy Pallas 12/25 Owner's manual

Brand: Victron energy

Model: Pallas 12/25

Category: Battery chargers

Type: Owner's manual

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Victron energy Pallas 12/25 Owner's manual

Victron energy Pallas 12/25 Owner's manual

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